baber/WOPTO huggingface dataset:
Patent GB-387718-A (GB)
Title: Improvements in and relating to reinforced concrete slab construction
IPC: E04B5/40
Filed: 1931-08-13
Abstract: 387,718. Floors, roofs, &c. casting floors in situ. DRABBLE, E. A., Far End, Somerset Way, Iver, Buckinghamshire, and HEWITT, A. E., Edrene, Harrow Road, Sudbury, Middlesex. Aug. 13, 1931, No. 22858. [Classes 20 (ii) and 20 (iv).] Reinforced-concrete slabs for floors, roofs, bridge decking, and like structures, comprise metal forms 1 of inverted channel form with flanges 2 in alignment to receive concrete c, the forms spanning between the walls, joists, or other supports, and remaining as part of the finished structure. Part of the sides and top of the forms may be of mesh or expanded metal. In the floor construction shown, the forms are supported at one end on brickwork 3 and at the other end on a girder 4 preferably provided with a concrete embrasure b. Reinforcement 5, 6 is embedded in the concrete c supporting the floor d. The reinforcement 6, which is supported by metal bridges 8, may carry hooks or clips 11 to support a sheet of mesh or expanded metal 10 on which a plaster ceiling is formed. Near the ends of the forms the concrete c is cast solid between the soffit ribs a, the concrete being positioned by means of stop plates 7, Fig. 5, of L-section. Straps 9 with hooked ends 9a may be provided to prevent spreading of the form walls 1a. In the construction of stepped terrace shown in Fig. 7, the form 1 has walls 1a of unequal depth.
Patent GB-762812-A (GB)
Title: Mass spectrometer
IPC: H01J49/40
Filed: 1954-08-09
Abstract: 762,812. Mass spectrometers. BENDIX AVIATION CORPORATION. Aug. 9, 1954 [Aug. 21, 1953], No. 23103/54. Class 39(1). In a time-of-flight mass spectrometer an apertured plate 44 interposed between the ion source and the collecter 40 limits the lateral dimensions of the ion beam and enhances the resolution. The ions are created between electrodes 22, 24 by an electron beam and withdrawn by a relatively moderate accelerating field applied between these electrodes with a much stronger accelerating field applied between electrode 24 and a further electrode 36, as described in Specification 727,683. Electrodes 36, 44 and 40 are at the same potential except for a slightly positive potential on 40 to collect secondary electrons. The aperture in plate 44 may be annular or rectangular and two apertures may be provided.
Patent GB-1497465-A (GB)
Title: Vehicle damper/spring assembly
IPC: B60G15/12
Filed: 1975-05-27
Abstract: 1497465 Hydraulic accumulators HONDA GIKEN KOGYO KK 27 May 1975 23118/75 Heading F1D [Also in Division F2]  The liquid chamber of the diaphragm-type accumulator of a hydropneumatic suspension unit contains a resilient element 9, which is engaged by the diaphragm 6 when the gas chamber 7 is at a  predetermined volume Fig. 1, and resiliently opposes further expansion of the chamber to its  maximum volume Fig. 3, defined by a rigid abutment 10. With normal loads on the unit, the resilient element 9 is unstressed Fig. 1. Should the load increase, the diaphragm 6 moves upwardly Fig. 2 (not shown) away from the resilient element 9, which is unaffected, and the spring rate increases. Should the load instead decrease, the gas chamber 7 cannot expand as much as it would if the resilient element 9 were not there. This ensures that the spring rate does not fall below a certain level when the load is low.
Patent GB-406027-A (GB)
Title: Improvements in or relating to apparatus for playing games
IPC: A63F5/04
Filed: 1932-08-18
Abstract: 406,027. Roulette apparatus. SEAVERS, R., 10, Hillingdon Road, Wavertree, Liverpool. Aug. 18, 1932, No. 23149. [Class 132 (ii).] Game apparatus comprises a hollow wheel or disc rotatable about a substantially horizontal axis and provided with pockets of unequal sizes adjacent its periphery, and a mass rotatable within a pocket of the disc under the action of centrifugal force adapted on slowing down of the disc to leave said pocket and fall into one of the pockets at the base of the disc. The hollow disc or wheel 10 is provided with recesses 12, 13, 14, &c. of different opening width and different slopes near its periphery to receive a heavy mass which may be a ball or an arrow 19 having a shank 20 slotted at 21 to receive a spindle 17 secured to the disc 10. The disc 10 can have secured to it on one or both sides further discs 15, 16, and the spindle 17 can have a knob 18 for rotation, the ball or arrow 19 coming to rest in one of the recesses on slowing down of the disc 10. The heavy mass 19 may be common to two hollow discs 22, 23, both with recesses of different sizes. The disc 22 is loosely mounted on, whilst the disc 23 is rigid with, the spindle 17 which is supported by a stand 26. The apparatus can be used for deciding the moves of players in games as shown in Fig. 4, in which the rotary apparatus is housed between front and rear stationary panels 29, the front panel having arcuate slots 30, 31 through which divisions 32 marked on the external face of the front disc 16 can be seen to correspond with divisions 33, 34, 35 on the front panel. The front panel may also be perforated at 36 to provide additional readings dependent on the rotation of another disc 37 which may be a plain disc or may be as shown in Figs. 1 and 2. The readings through the perforations 36 may be additive or subtractive of the readings of the disc 16. The disc 10 may consist of an annular ring having recesses cut on the inner edge and such recesses may be provided with lips tending to retain the mass therein. Obstacles such as pins may be provided adjacent the openings of the recesses. The disc may be geared to indicating devices for any particular game.
Patent GB-917177-A (GB)
Title: Improvements in or relating to packing machines
Inventor: MOSSE RICHARD WOLFGANG EMIL
IPC: B65B57/12
Filed: 1960-06-01
Abstract: 917,177. Packaging machines; egg cartons. METAL BOX CO. Ltd. June 7, 1961 [July 1, 1960], No. 23172/60. Classes 18 and 94(1). Two kinds of wrapper which differ, e.g., in colour, to indicate the grade of their contents are transferred to an intermittently moving conveyer 8 from separate magazines 10, 11 by sucker mechanism 12 operated selectively by micro-switches 36, 37 which sense distinquishing features on incoming moulded trays containing one of two grades of articles, e.g. eggs, the respective wrapper and tray being supplied to a position 9 where the tray is inserted in the wrapper. The micro-switches 36, 37 have plungers operated by side portions on the trays, Figs. 2 and 3 (not shown), which differ according to tray contents. Each switch controls one of two solenoids 19 which, when energised, moves a bell-crank 20 into the path of a vertically reciprocated plate 24. Each bell-crank 20 is pivoted at 21 on one of two carriers 17 which supports both the suckers 12 and a valve 13 controlling the supply of air to the suckers A time switch 40 ensures that the solenoid 19 is energised only when the plate 24 is at its lowest position. The plate 24 is raised by means of a pivoted arm 26 and connecting rod 25 driven from the main shaft of the machine. In rising, the plate engages a bell-crank 20 thereby raising one of the carriers 17, a fixed cam 44 operating the respective valve 13 to supply air to the suckers so long as the carrier 17 is raised. As a wrapper is drawn from its magazine, it is set up by fixed guides 45. The trays are supplied on an endless conveyer 2 which delivers them into the path of pushers carried on endless chains 7. The micro-switch plungers may be replaced by photo-elcetric devices which sense coloured indicators on the trays.
Patent GB-1133026-A (GB)
Title: Radio frequency coaxial switches
Inventor: BURT WILLIAM GRISWOLD
IPC: H01P1/12
Filed: 1967-05-18
Abstract: 1,133,026. Electromagnetic relays. MICROWAVE ASSOCIATES Inc. 18 May, 1967, No. 23243/67. Heading H1N. A radio frequency switch comprises a rectangular cavity 23 formed between flat surfaces 27 and 28 of metal blocks 10 and 25, into which cavity the inner conductors of coaxial sockets 12, 13, 14 extend to form fixed contacts 15, 16, 17. Movable flat strip contact members 30 and 31, carried on spring-loaded plungers 32 and 33, are alternatively movable into engagement with contact 16 and 15 or 17 respectively by a rocker 37 pivoted at 38 and operable against spring 40 by energization of a solenoid 43. The end of each member 30, 31 which engages contact 16, is cut on the slant (Fig. 3, not shown), so that they can pass each other during switch operation. When not depressed the members 30 and 31 lie in uniform electrical contact with the surface 28 so that the cavity between the non-connected contacts functions as a waveguide beyond cut-off. In a second embodiment (Figs. 5 and 6, not shown), four coaxial sockets are arranged at the corners of a square and four movable strips are depressed in alternative pairs by two rockers (78, 80) simultaneously actuated by a cross-arm (87) when a solenoid (85) is energized.
Patent GB-926401-A (GB)
Title: Scale removal
IPC: C23G1/08
Filed: 1961-06-27
Abstract: Mill scale containing iron oxide is removed from heat exchangers by treating with a pickling solution containing citric and formic acids. The solution preferably an aqueous solution of the acids contains 0.2 to 20 weight per cent of the acids in a ratio of 0.33 to 6 parts of citric acid to one part of formic acid and the treatment is effected at a temperature between 65 DEG  C. and the boiling point of the solution.  The solution may also contain 0.001 to 0.1 weight per cent of a corrosion inhibitor and 0.01 to 0.1 weight per cent of a wetting agent.  The inhibitors used may be the known compounds such as (1) reaction product from the following reactants: (a) an organic chloride such as ethylene dichloride, propylene dichloride, dichloroethyl ether, dichloroisopropyl ether, triglycol dichloride, tetraglycol dichloride, benzyl chloride and naphthyl methyl chloride; (b) a cyclic coal tar base; and (c) a water-soluble inorganic thiocyanate and/or thiourea; (2) organic nitrogen base compounds such as aniline, pyridine, quinoline, acridine or the alkyl substituted derivatives; (3) glycol ethers of an ethanol amine; and (4) reaction products of a rosin amine, formaldehyde, and a ketone.  The wetting agent is preferably the condensation product of ethylene oxide with di-secondary butylphenol.  The pickling solution is pumped into the vessel to be cleaned and after treatment the used solution is pumped out.
Patent GB-385017-A (GB)
Title: Improvements in and relating to the construction of roads
IPC: E01C5/08
Filed: 1931-08-19
Abstract: 385,017. Moulds. IVITSKY, V., 11, Queen Victoria Street, London. Aug. 19, 1931, No. 23372. [Class 87 (ii).] A mould for making triangular-shaped concrete slabs having a surface reinforcement 5 and an internal reinforcement 4 with corner projecting tongues 7 is provided with grooved corner members 8 which, when the reinforcement 4 is positioned on the reinforcement 5 within the mould, are adapted to be engaged by the tongues 7.
Patent GB-148075-A (GB)
Title: Improvements in or relating to machines for winding thread
IPC: B65H63/08
Filed: 1919-09-23
Abstract: 148,075. West, J. W. Sept. 23, 1919. Apparatus fitted to thread-winding machines; vibration, preventing and neutralizing.-Relates to apparatus for thread-winding machines comprising a platform balance, of which one platform 11 carries a number of spools or bobbins containing the thread to be wound and supports the bobbin 23 from which the thread is wound, and the other platform 12 carries a number of weights or units which are less than the weight of the bobbins by the weight required to be wound, so that when winding is completed and the equilibrium of the balance restored, the platform that carries the bobbins operates the stop-apparatus of the machine. The invention is described as applied to a winding-machine of common construction comprising an actuator 10<c> for the starting and stopping device. The bobbins are carried on pegs on a frame which is rotatably mounted on a rod and supported above the platform 11 by a sleeve 28 to facilitate the manipulation of the weights and bobbins. The rod extends above the frame and carries a bobbin. A resilient disk 31 is disposed between the platform and the frame that supports the balance to absorb the vibrations of the machine. Initially the platforms are balanced and a unit weight 30 equal to the weight of the thread to be wound is removed from the platform 12 to a receptacle 29; when winding is completed the platform 11 rises and operates the actuator 10<c>. Unit weights are then alternately removed from the receptacle 29 to the platform 11 and from the platform 12 to the receptacle 29 to restore the unbalanced condition after successive windings.
Patent GB-458940-A (GB)
Title: Improvements in or relating to the production of coatings of tin or tin alloys on metal articles
IPC: C23F1/00
Filed: 1935-08-20
Abstract: Metal articles such as sheets or strip are subjected to a slight oxidation treatment before being electroplated with tin or a tin alloy and after plating are heated above the melting point of the coating metal.  The oxidation should preferably be such as to form not more than 0,02 gram-molecules of oxidation products per sq. metre, the surface of the basis metal showing no visible alteration. The oxidation may be effected by chemical treatment with oxidizing agents such as chromic acid, chromates or dichromates, permanganates or peroxides.  Fused oxidizing agents may be employed.  Oxidation may also be effected by heating in air or an oxide of nitrogen.
Patent GB-444612-A (GB)
Title: Improvements in machines for conveying gaseous fluids
IPC: F04C18/46
Filed: 1935-08-20
Abstract: 444,612. Rotary compressors. TEBALDI, A., 18, Via Ilarione Petitti, Milan, Italy. Aug. 20, 1935, No. 23394. Convention date, Aug. 21, 1934. [Class 110 (ii)] [See also Group XXVIII] A combined evacuating and compressing plant comprises a rotary compressor of the hinged abutment type, which (a) sucks air from an inlet 17 to an outlet 18, (b) compresses air between 18 and a non-return valve 24, near the abutment 14, which passes through a cooler 28 to an inlet valve 34 leading to a reciprocating compressor 29, or to atmosphere from a chamber 42, when a valve 41 is open. The outlet 18, leading to a chamber 20 which communicates with the atmosphere, comprises a number of holes along the cylinder bore, controlled by an axially tapering, rotatable, throttle valve 19, which may close all the holes so that all the air entering the port 17 is delivered through the valve 24. The driving shaft 6 has a radial extension 6<1>, and a surrounding sleeve 8 also has an extension 81. A spring 52 presses the sleeve outwards, and also presses a drum 10 into rolling contact with the casing bore 11. The pivoted abutment 14 is pressed against the periphery of the drum by a spring 15 and a piston 16. Air passing through the valve 24 traverses passages 27 in a gilled cooling chamber. The piston 30 of the reciprocating compressor is driven by a crank-pin 6" having a part 58 which slides in a rectangular frame 31. A member 56 slides in a guide 57. Normally air enters the cylinder 29 past a spring-pressed valve 34 and is delivered past a similar valve alongside the valve 34 to an external reservoir. A regulating valve 41 rests on a block 44 attached to a diaphragm 46, the latter being fixed to a rod 49 clamped to, and supported by, a resilient plate 50. The chamber 42 communicates with the interior of 20, and so with the atmosphere, and the underside of the diaphragm is open to pressure existing in the external reservoir. To operate the plant for evacuating air only, a screw 54 is turned to lift the valve 41, the valve 19 is left open, and air is discharged through orifices 18, 42, to the atmosphere. To deliver all the air passing through the two compressors, to the reservoir, the valve 19 is closed, and the rod 49 regulated to allow the valve 41 to remain on its seat. If the pressure in the reservoir becomes too high, the diaphragm 46 and valves 41, 34 are lifted. A number of valves 19 may be arranged around the casing 1, but only one being in use at one time.
Patent GB-773930-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/70
Filed: 1955-08-15
Abstract: 773,930. Electrostatic precipitation. RESEARCH CORPORATION. Aug. 15, 1955 [Oct. 28, 1954], No. 23435/55. Class 39(1). An electrostatic precipitator working at super-atmospheric pressures has a series of insulator compartments 22, 30, 32 at decreasing pressures. Chamber 22 is preferably at a pressure slightly above that in the precipitator itself. Inert gas is supplied to the chambers from a source 38.- Pressure control valves 48, 50, 52 are electrically controlled by pressuresensing devices 54, 58, 60 to maintain suitable pressure differentials between the successive compartments.
Patent GB-982881-A (GB)
Title: Improvements in or relating to level luffing slewing cranes
IPC: B66C23/10
Filed: 1963-06-12
Abstract: 982,881. Level-luffing jib-cranes. EISENBAU WYHLEN A.G. June 12, 1963 [Nov. 30, 1962], No. 23450/63. Heading B8B. Level-luffing is effected by passing a winding rope 15 round a pulley 16, Fig. 1, a pulley 11, Fig. 3, mounted on an axle 10 which supports counterweights 6, over a fixed pulley 13, Fig. 1, back over a pulley 12, Fig. 3, and then to a winding drum 14, Fig. 1. As the jib 4 is luffed by a ram 5 the counterweights, which are attached to the jib by cables 8, move up and down curved guides 7 on rollers 17, Fig. 3. The counterweights are pivoted on the axle 10 and attached to the cables 8 at points 18 which are a predetermined distance from the axle and therefore prevent rotation of the weights. The jib 4 and a cabin 2 slew on a base 1.
Patent GB-1353666-A (GB)
Title: Disperse mono-and dis-azo dyes and their use in colouring hydro carbons
IPC: C09B43/20
Filed: 1971-04-19
Abstract: 1353666 Amines AZIENDE COLORI NAZIONAL1 AFFINI ACNA SpA 19 April 1971 [11 March 1970] 23501/71 Heading C2C [Also in Divisions C4-C5] Tertiary amines of formula wherein Z is a H or Cl atom or CH 3 , R is CH 3  or C 2 H 5 , m is #1, n is #1 and the sum of m + n = 3-10 are described. They are prepared (cf. Example 7) by condensing an amino-benzene with an excess of ethylene oxide and esterifying the product.
Patent GB-387950-A (GB)
Title: Improvements in and relating to hay sweeps
IPC: A01D87/08
Filed: 1932-08-22
Abstract: 387,950. Hay-sweeps. JARMAIN, Ltd., T. M. and PANCOTT, A. J., Haseley Iron Works, Great Haseley, Oxford. Aug. 22, 1932, No. 23503. [Class 6 (iii).] The forwardly extending tines 8 of a haysweep are mounted upon the supporting frame so as to be capable of yielding laterally thereof in an approximately horizontal plane upon meeting obstructions in their path. The main frame comprises transverse bars 1, 2 connected by members 3, 4 and carried upon wheels 5, 6, a frame extension 7 extending from the rear of the frame. Each tine 8 is secured to the bar 1 by a pin 9 permitting pivotal movement of the bar in a horizontal plane and each bar rests in a U-shaped bracket 10 secured to the underside of the bar 2. Compression springs 11 are fitted in the brackets at the sides of the tine and tend to hold it in its middle position. A cover may be fitted over the bracket and springs. Means for permitting vertical yielding of the tines may also be fitted such means comprising a compression spring 19 fitted between the upper side of each tine and the end of the pivot pin 9.
Patent GB-1368873-A (GB)
Title: Hull
IPC: B63B3/00
Filed: 1972-05-18
Abstract: 1368873 Hull construction SOC ESERCIZIO CANTIERI DI MARIO JERI & C SAS 18 May 1972 23504/72 Headings B7A and B7S In a boat hull, sheet metal plating 11 is fixed to and forms a metal shell inside metal frames and stringers 13, 15. A protective covering of an expanded polyurethane resin 17 and a surface layer 21 of polyester and glass fibres on the outside of the shell adheres to the shell and to the metal structure of frames and stringers. The surface layer 21 forms the outer contoured surface of the hull. In the boat shown, stabilizing fins 35A are formed by projecting parts of the covering. Intake scoops are described with reference to Figs. 9 and 10 (not shown) and the location of tubular sleeve 65 of propeller shaft 61 is described with reference to Fig. 11 (not shown).
Patent GB-812673-A (GB)
Title: Improvements in or relating to photographic material
Inventor: WILLEMS JOZEF FRANS
IPC: G03C1/42
Filed: 1957-07-25
Abstract: Pyrogallol carbonate is prepared by mixing pyrogallol with diphenyl carbonate and distilling off the phenol formed.  Pyrocatechol carbonate is prepared by adding ethyl-chloroformate at 0 DEG  C. to pyrocatechol dissolved in KOH.  Pyrocatechol oxalate is prepared by adding ethyl oxalyl-monochloride to the mono sodium salt of pyrocatechol (obtained by adding sodium to pyrocatechol in methanol). Pyrocatechol mono-acetate is prepared by dissolving pyrocatechol in acetic anhydride, refluxing and pouring on to ice.  Tripyrocatechol diborate is prepared by refluxing a mixture of pyrocatechol, boric acid and anhydrous copper sulphate in anhydrous toluene, and sucking off the hydrated copper sulphate formed.  Specification 614,155, [Group XX], is referred to.
Patent GB-319883-A (GB)
Title: Improvements in and relating to gramophone sound boxes
IPC: H04R7/12
Filed: 1928-08-16
Abstract: 319,883. Cotton, A. F. R. Aug. 16, 1928. Diaphragms; magnetic instruments.-A soundreproducing device has a frusto-conical re-entrant diaphragm, capable of free vibration at its periphery and with an actuating device connected to the re-entrant portion, the open face of the reentrant portion being directed towards an apertured back-plate coned to the same shape as the outer portion of the diaphragm. In a loudspeaker, the inner portion c of cup, dome or conical form carries an armature p, Fig. 3. The diaphragm is flexibly mounted by resting on a solid or tubular rubber ring q. The armature may be attached to the periphery of the portion c or a moving coil may be used. The gramophone sound-box, Fig. 2, has the diaphragm a mounted by an annular flexible washer f and the backplate i has a conical portion i<1> fitting the diaphragm and leading to the tone arm. The diaphragm is of aluminium, silver or other material and may have circumferential corrugations up to and near its extreme periphery.
Patent GB-1273883-A (GB)
Title: Underwater breathing apparatus
IPC: B63C11/24
Filed: 1970-05-15
Abstract: 1,273,883. Underwater breathing apparatus. WESTINGHOUSE ELECTRIC CORP. 15 May, 1970 [12 June, 1969], No. 23701/70. Heading AST. A divers' underwater breathing apparatus having flexible breathing chamber means 60 formed as two interconnected loops 60a and 60b for looping respectively over the divers' shoulders, a gas inlet to the chambers which may be from cylinders 80 or an external source and a passageway 75 to communicate the chambers and the diver is characterized in that a plane through the centroid of lung pressure of the diver equally divides the potential volume of the breathing chamber means. This allows that if the pressure in the chamber is maintained at approximately that of the water at the lung centroid by the blow off valves 83 and 84 situated on one of the chambers the same amount of air will be contained in the chamber regardless of the divers' orientation since the pressure in the chamber will be the same as that at the plane to which the chamber collapses under water are situated on the divers' front and back pressure. The two blow off valves 83 and 84 respectively on a line through the centroid of lung pressure. The front valve 83 may be set at a higher pressure or situated lower on the body in use than the rear valve 84 to delay its operation so that bubbles do not obscure the divers' view when in the upright position. Gas passing from one chamber to the other goes through a carbon dioxide adsorber 72.